HDR Image GRADient based Evaluator (HIGRADE)
NEW!
Download here.
Please cite the following paper in any published work if you use this software.
D. Kundu, D. Ghadiyaram, A.C. Bovik and B.L. Evans, “No-reference quality assessment of high dynamic range pictures,” IEEE Transactions on Image Processing, to appear.

Feature maps based Referenceless Image QUality Evaluation Engine (FRIQUEE)
NEW!
Download here.
Please cite the following paper in any published work if you use this software.
D. Ghadiyaram and A. C. Bovik, "Perceptual Quality Prediction on Authentically Distorted Images Using a Bag of Features Approach," http://arxiv.org/abs/1609.04757 (under review)

Gradient Magnitude Similarity Deviation (GMSD).
Download here
NEW!
Please cite the following paper in any published work if you use this software.

No-reference Image Quality Assessment based on Spatial and Spectral Entropies
Download here.
Please cite the following papers in any published work if you use this software.
L. Liu, B. Liu, H. Huang, and A.C. Bovik “ No-reference image quality assessment based on spatial and spectral entropies,”
Signal Processing: Image Communication, June 2014

Blind prediction of natural video quality
Download here.
Please cite the following papers in any published work if you use this software.
M. Saad and A.C. Bovik, “ Blind prediction of natural video quality ”
IEEE Transactions on Image Processing, December 2013

GRNN based No Reference image Quality Index (GRNN-NRQI)
Download here.
Please cite the following papers in any published work if you use this software.
Chaofeng li, Alan Bovik and Xiaojun Wu. Blind Image Quality Assessment
Using a General Regression Neural Network, IEEE Transactions on Neural
Networks, 22(5), 2011. 793-799.

Pixel domain version of VIF.
Download here.
A computationally simpler, multi-scale pixel domain implementation of
VIF whose performance is slightly worse than the Wavelet domain
version.
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.Please cite the following paper in any published work if you use this software.

Information Fidelity Criterion for Image Quality Assessment.
Download here.
Note: Visual Information Fidelity (VIF) is an extension and improvement. You need
Steerable Pyramid toolbox
to run it. Please cite the following paper in any published work if you use this software.